Loading overlay view now fills view fully when showing and device is rotated
Reordering of assets
Spinner overlay added to messages cell, shows/hides when messages start/finish loading when view appears
"LatestChatty2 beta" build target added as a copy of the main build target, overrides the bundle identifier, build number, bundle display name, etc.
Use for testing to have the test version and app store version installed on the same device.
Wrapped existing code in GCD blocks to avoid UIKit on background thread issues that were causing status/nav bar flashing and the console warning indicating UIKit usage on a background thread
Thread view post expiration stripe tweak